Audio Engineering

Representing the plaintiff or defendant, Cahn Litigation Services is often called upon to locate an expert witness to support audio engineering matters. An audio engineering expert witness typically has expertise and a background in acoustics, computer science, broadcast engineering, physics, acoustical engineering, and/or electrical engineering.

An audio engineer designs, develops and builds audio or musical technology. Audio engineering encompasses audio signal processing, architectural acoustics, musical acoustic, psychoacoustics, and speech . An audio engineer works with the mechanics of recording, mixing, and reproducing sound.

Often, matters requiring expert testimony by an audio engineering expert involve intellectual property, such as patent infringement litigation or trade secret disputes. An audio forensic engineer can reverse engineer components to prove (or disprove) intellectual property infringement or theft.

Litigation support by an audio engineering expert witness could include forensic engineering, writing an expert report, expert opinion, deposition and courtroom testimony. In a high-profile case, or litigation involving a significant financial stake, a law firm may request a qualified expert with prior expert witness testimony experience. In addition, clients may seek an industry expert for pre-litigation consulting work. An expert witness needs to not only have expertise in the subject, an expert witness must possess the ability to explain evidence to a juror.

Related Disciplines

Audio Engineering Expert Witness - Sample Bios

Please Note: All Cahn Litigation expert witness searches are customized to attorneys' precise specifications and preferences. Attorneys are encouraged to discuss search parameters with a Cahn search specialist.

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The below expert witness bios represent a small fraction of those Audio Engineering experts known by Cahn Litigation Services. These bios are provided to give attorneys a sense of the Audio Engineering landscape.


Expert Witness #212559

This expert received BS and MS degrees in Electrical and Computer Engineering, and a Ph.D. degree in Electrical Engineering. This expert was an R&D Engineer at a technology company where this expert worked on the development of a packet switched satellite modem and several sequential decoders for the decoding of convolutional codes. This expert joined the faculty of the School of Electrical Engineering at a prestigious university as an Assistant Professor; this expert was appointed to Associate Professor, with tenure, and was a Full Professor. This expert taught courses in digital communications, error control codes, information theory, detection and estimation theory, digital systems and audio engineering. This expert's current research interests include: information, coding and communication theory, algorithms for digital communications, coding for computer memory systems, signal processing and error-control in optical and magnetic recording systems, audio and video signal compression, algebraic geometric coding theory and symbolic and numerical computer methods. This expert has been an active member of the consulting community. This expert has worked on problems of digital HDTV and cable TV transmission, DSP and hardware based trellis coded modems, modulation and error-control for optical LANs, and modulation and coding for recording systems. This expert is the inventor on several patents. This expert is the founder and chief scientist for a digital communications company. This expert was the CEO and Principal Scientist a fabless semiconductor company specializing in physical-layer communications with a particular expertise in forward error correction (FEC). The technology is vital in: high-speed wireless networking (IEEE 802.11/WiFi), cable modem, digital-TV, digital subscriber line and satellite/terrestrial wireless. This expert has received an Award from the National Science Foundation (NSF) and is an active member of IEEE. This expert has extensive litigation experience both in district court and in IPR.


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Expert Witness #226228

This expert holds a Ph D in Electrical Engineering and brings to the table many years of academic and professional experience in speech and audio signal processing, speech and audio signal compression technology, standards for speech and audio compression, and software implementation on real-time platforms and in client/server architectures. This expert is the founder of two (2) related technologies research laboratories and holds more than 20 patents, all dealing with the coding, compression or retrieval of audio digital signals or data. As the Principal of two highly successful media technology consultancies, this expert specializes in changing the way people create, listen, and share audio content on and over the Internet. This expert's technology platforms have provided a virtual studio and venue for musicians, jammers, and fans alike to participate in the music making process, in which unique musical content is shared with others in real-time. This expert is responsible for designing, developing, and testing all aspects of a client/server architecture for real-time audio streaming, recording, mixing and playback. Additionally, this expert has developed and is selling products for subjective audio evaluation and for multi-channel audio mixing. In industry, this expert worked with a Fortune 100 Company's digital music delivery system initiative, where this expert was responsible for transferring the technology to the business of secure sales of music over the Internet. This involved the legal and business aspects of patent licensing and the engineering aspects of bitstream packetization and encryption in a system using compressed rates of 16 kbps for music preview and 96 kbps for music sales. This expert also developed and implemented a client/server music player using audio technology. This used an OpenGL graphical user interface and UNIX socket-based client/server communication and implemented a streaming client/server architecture for audio and image data that communicated via ISDN. In addition, this expert has done patent expert witness work, patent litigation support, patent valuation, engineering consulting, and participated in standardization activities.  


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Expert Witness #232633

This expert holds a PhD in Electrical Engineering and serves as President and CTO of a highly successful consultancy specializing in digital electronic design. This expert has worked with wireless technologies for many years, including Wi-Fi, CDMA, and Bluetooth. This expert's Bluetooth experience relates to writing firmware to implement the Bluetooth link between a wearable device (a ladies' ring) and a mobile phone. This expert also has experience with streaming audio and video technologies, including push-to-talk audio over IP and streaming H264 video. This expert has been using/developing/debugging Internet technologies for many years. This expert has prior litigation experience and has been deposed, but has not yet had the pleasure of testifying in court.


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Expert Witness #234887

This expert is a consultant and patent owner with many years of experience in developing and supporting the development and commercial exploitation of new technologies in the areas including audio and video encoding, decoding, recording, storage, transmission, and presentation, consumer electronics, digital television, broadcast, mobile, and fiber telecommunications, and computer and storage networks. This expert is specifically experienced in speech processing technologies and details of recognition and insertion of service signals in video programs.

This expert has supported numerous licensing negotiations and reexaminations/IPRs as well as over 50 patent-related District Court and ITC cases, in consultative preparation of cases, characterization of accused products (by testing, reverse engineering, source code review, etc.), preparation of declarations and reports, and, as needed, testifying.

This expert is a Member of the Audio Engineering Society and an Observer Member of the Advanced Television Systems Committee (ATSC).

Summary of Selected Professional Experience

-  Development of techniques for bandwidth reduction encoding and decoding of audio and video content (patent granted on video technique)
-  Consulted on interactive multimedia systems with automated insretion of text over bvideo
-  Consulted on adaptive variable rate coding for speech and general audio and on automatic audio content identification

Summary of Selected Related Case Experience

-  Patent litigation - issues included recognizing and tagging media content
-  Patent litigation - issues included audio and video data encoding, decoding and bit-rate reduction in digital television receivers
-  Issues included audio encoding and decoding, and recognition and insertion of service signals for digital television
-  Patent litigation - audio encoding and decoding, and content-descriptive metadata generation, extraction, analysis and insertion in digital television

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Expert Witness #248343

This expert has designed and analyzed the microelectronics and software for systems managing media remotely and performing music downloads for many years and is an award winning inventor for innovative digital audio engineering design and valuable contributions to the advancement of audio engineering. This expert has been involved with the technologies behind the remotely-managed media and uploaded and downloaded music files. This expert has designed cable TV multiprocessing systems for managing media remotely and performing music downloads. Most of the microelectronics circuits this expert has designed at the transistor/resistor/capacitor and chip level involved amplifying signals, controlling impedance and output speed characteristics, and included the design of timing circuits, level converters and latching digital signals. While on the Editorial Board of a renowned publication for electronics engineers, this expert analyzed the internal design of memory chips (including memory bit cell arrays) and state-of-the-art integrated circuits for processing and storing media. This expert has worked on the engineering design of audio signal processors and memory systems, including emitter-coupled design with controlled impedance, as well as user interface design for content selection and control. Further, this expert has designed user interfaces for media content selection and control. This expert also has designed and developed processors and memory systems as well as high fidelity digital-to-audio and audio-to-digital conversion circuitry, included timing circuits, impedance control, level control, signal amplification, latches and memory design. This expert has worked on the engineering design of a multiprocessor media server. This expert has analyzed hundreds of patents and has researched, reverse engineered and analyzed microelectronics and software.


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Expert Witness #211832

As President of an audio/video engineering consultancy, this expert brings to the table many years of engineering experience in audio/video systems and the encoding, decoding, and processing of audio/video and ancillary data and its manipulation. Specializing in encrypted data transmitted over the vertical blanking interval of analog (and later digital-sourced) video images, this expert has chaired a standards committee which maintains standards relating to television data systems. Further, this expert has developed technological expertise as data has moved from analog video VBI into (generally) an audio watermark. This expert possesses a wide ranging digital television-focused technical foundation, including engineering work on audio/video silicon products, real-time operating system development, set-top box development, audio/video compression systems development and architecture and internet technologies. This expert has reversed engineered code and through expert witness work, has become patent savvy. This expert has published papers, is a frequent presenter at industry conferences, and has worked on numerous standards committees. This expert has provided litigation support in a number of high profile patent litigations matters. This expert's experience as an expert witness in litigation includes report preparation, as well as deposition and trial testimony, for patent infringement matters.


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Expert Witness #215714

This expert has many years of academic and engineering experience and has experience as an expert witness in computer science, software development, network streaming media, embedded systems, enterprise software systems, digital signal processing for audio and music technology. This expert has sustained a long and successful career at the cutting edge of software development and system design using multiprocessor/multi-core architectures for signal processing and control. This expert has been a Software Architect for multiple projects at various companies, and has consulted for a long list of technology companies. This expert provides computer technology consulting, software engineering, and litigation support to high-technology companies, internationally.

This expert has testified before the International Trade Commission, and before a jury in Federal Court, has testified at Markman claim construction hearings and Markman tutorials in Federal Court, been deposed over 10 times, and has authored more than 50 reports and declarations. Case types include patent, trademark infringement, copyright, trade secret misappropriation, and inequitable conduct. This expert has worked on complex international patent cases, and has provided expertise on such diverse areas as streaming media systems, handheld networked Personal Information Management (PIM) devices, enterprise email systems, software for factory automation, interactive databases, enterprise software for management of media libraries, MPEG audio compression, on-line gaming, composition systems, digital camera hardware and software, digital audio hardware and software technologies, compilers, file systems, operating systems, and more.

This expert has worked for companies that interfaced between portable and nonportable devices for sharing information and resources. Additionally, this expert has testified on matters regarding the protocol for having a portable device direct music to be transmitted to a sound system wirelessly.

This expert has published widely in various juried journals, and has authored three books including a two-volume text on the mathematics of music, and a collection of articles on artificial neural networks and music research. This expert taught graduate and undergraduate courses in computer science and digital audio, conducted computer systems research for digital audio, designed and built several networked digital media computer laboratories.


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Expert Witness #218672

This expert holds a Ph.D. in electrical engineering and computer science and is a Professor in the School of Electrical and Computer Engineering at a technology institute. The creator of a start-up which develops image and video processing software for wireless and IP networking, this expert has been active in the areas of voice and audio processing for many years. This expert is a Fellow of the IEEE, and has received awards for contributions to electrical engineering. This expert has reviewed and analyzed software and hardware designs through source code analysis for pre/post-litigation phases. This expert leads several large technology research programs in the areas of multimedia, networking, telecommunications and wireless technologies and has authored or edited several books. This expert is a frequent consultant to the industry. This expert has served as an expert witness and consultant in several leading intellectual property and patent litigation cases (both ITC 337 proceedings and Federal Circuit), and has been engaged as a litigation expert of graphics processing systems and components. This expert has testified at ten trials and was deposed over forty times.


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